Method and apparatus for folding and fusing the elements of a slide fastener string
CA 1069590 A · Owner: Textron Inc. · Inventors: Monroe, Lawrence S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for folding the coupling elements of a slide fastener string includes a pair of electrodes connected to a source of high frequency electromagnetic energy and a series of guide sections. The string is drawn through the guides and the coupling elements are heated and softened by the electromagnetic field and folded by the guides.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.